Having a strange problem on my wifes PC where emails dissapear from mailboxes. It seems to happen to certain sub mailboxes regularly. There are several ways they dissapear.

Mailbox shows (xx) number of unread emails in the left window. When the mailbox is opened only (x) number emails are actually visible and then the number in the left window changes to reflect the number of unread emails visible.

Sometimes she will be in the mailbox and have say 50 unread emails visible. Leave the mailbox and return shortly afterwards to find only a few unread emails remaining.

Now the strange thing is that these emails RETURN if she has a large number of emails in her Trash (>1500) and she empties the Trash. Sometimes a compress is needed after emptying (>1500) emails from the Trash before they return. Emptying smallish numbers from the Trash does not bring the hidden emails back even with a compress.

She's using Pocomail 3.4 build 2130 with only filters to move incoming emails into sub mailboxes. This has been happening on earlier versions of pocomail aswell. Running WinXp SP2 and NAV 2004 with no antispam filters/software.

Can anyone suggest a course of action to try and eliminate any causes of this fault. I have only limited time on her pc as she receives 700+ emails a day and is pretty busy reading them.

Well, it seems that setting a password on the mailbox doesn't actually help. My wife just showed me how a mailbox showed 5 unread emails but there were none visible in the window. The window was set to "Show all mail" and after trying other options and other mailboxes the left panel now said there were no unread mails in the mailbox. I used the "View Mail on Server" feature and there were no emails from the effected sender on the server. I then selected "Compress mailbox" from the menu and all of a sudden the mailbox contained 2 dozen or more emails most of which had previously been deleted and ALSO the 5 unread emails. The 5 unread emails were from about 20hrs ago and spread randomly amounst the returned "Deleted" emails.
Does this make any sense to anyone? Sounds a bit like the mailbox was corrupted for the deleted emails to be returned upon compressing?
Any suggestions?

Which files do you mean? The mailbox mbx, idx, dat files? - all just have the Archive bit set. Configuration ini files? - Same as the mailbox files. Or is there some other file I'm not aware of that might cause random emails to not display?

I am having the very same problem. YEs- I can retrieve my "lost" emails by compressing the folders - thenm need to dlete liek 1000 mesages- how can one prevent this - it seems to happen when I close Pocomail- then the cycle happens all over again. PLease suggestions?